Spring suspension for ford cars and trucks



Nov. 10 1925- 1,560,759

P. D. CHAMBERLAIN SPRING SUSPENSON FOR vFORD CARS AND TRUCKS Filed Nov.28. 1924 y, .F1/5f.

of the car or 7 l The invention Patented Nov. 10, v192,5. i

Paw `12MB 'casses i elsofjrfsea @mais sei-rasa! s srsmesvsrsasiw @wennCARS ,AND ,TRUGKS- i Application filed November 28, 1924. VSerial No.752,820.`

To all whom t may concer-n:

.Be it known that I, PAUL :DA1/in .Cn-Annun- IAiN, a subject of theAKing' of Great Britain,

,resident of thel town of Fairbank, in the Province of Ontario, ,1n theDominion of Canada, have Vinvented new and useful i111- provernents inSpring Suspensions 'for Ford Cars and Truc-ks, oi'f 1vl1`ich thefollowing vvis a specification."

The invention relates to improvements in spring suspensions for Fordycars and trucks lvel-ted semi-.elliptical springs V which are shackledto the axles of ,the running gear. These .form to all intentsfandpurposes a two-point mounting 'for the car body which in prac-tice has agreat tendencyto sway'A and :tilt from one side to another; hence' itbis the object oi the present'invention yto provide auxiliary springsfor the piu-pose'cifeheckl 'ing this swaying Aaction anCl"fu1jtl1erfunction to absorb l:shfocksan'd rebound' the main springs in ordertoz'efe'ct ysmoother lrunning'of thevehicle. y

consists substantially of springs rigidly ,mountedfon each 'of the axles1 ;truck and engaging'they frame of the car bodyat eac'hofitscor1`1`ers.

Referring' to the drawings; Figurel is a fragmentary front View oi aFordcar showing 'one `'of the .auxiliary springs applied thereto. v

Figure 2 is a transverse sectional view taken 011 the line 2-2 of Figure1.

Figure 3 is a further transverse sectional view taken on the line 33 of,Figure 1.

Figure 4 is a fragmentary rear view of the chassis.

Figure 5 is a cross sectional view taken on the line 5-5 of Figure 4.

Figure 6 is a detail of a helical spring.

Like numerals indicate corresponding parts throughout each ligure of thedran'- ings.

In the dra-Wings, 1 designates the frame of the vehicle and 2 the frontaxle which 1s connected to said frame by the semi-elliptical spring 3. 4is the steering knuckle of the axle and 5 is the lamp bracket which iscarried by the frame 1.

llVith regard to the auxiliary springs, each of the front ones areident-ical in construction andare positioned one -upon .eachsidevl ofthe car body.` By reason o-tl1e`ir-siinilariv ty, la description of.oneoffthein xiill' lserve fior either.'Y Y f J` o -is a lower Lleafsubstantially`Veshaped,

of vthe steering knuckle the anle.""'l`hc Eother end ofthis :leaf is.extendedto .a point .beneath the lamp'bracket 50i .the cal", Whereterniinatesin an eye-8. v91is'an fu-ppei'flealf or a sirnilarsha'peand'is arranged cont" l ous with the lower leaf. The lo/xverdfetrein-'ty of thislea-f is likewise 'bent lto tollen/inthe contour of thesteeringknuckle and-.ispalso r 'provided with an upturned `etensionflOwhich terminates in Ia further` eye. ,llbcv other end of tliisleafisleiite1idedtda point justV short or the eye Soi .the lower .spring (3l l land-is likewise 4 i:'ornied into a further .eye .11. 12 'is abentplateislightly greater in width thanthe leaves 6 -and9 and positionedthere-1:1:

overV 'at the steering Vilinuckler. :The said yplate Tis rigidly1clamped to the front axle :by a. pair oU-clampsl 13 and1`4having nutsthreadedly engaged over their lextrem'ities as l at 1 5.' These clamps`13 plate' 12 rigidly l secure -the'ftwvo xleaves or ,the springto theCarr axle. `flluelower spring is connected to the lamp bracket -5,byasliaekle 16 comprising `va 4pair '.otnienibers .17 and 18 which arerecessed at onefend1to :receive "lampbraeket Theotherf endgoffgthe saineare 'ciit avv'ay to receive a roller lfwwhicli is passed through the eyeSgoffthe loxversp-ring. V )erholt-Q0 rigidly clamps .tlicltnoiparts ofthe shackle together in order to form a rigid connection with the lampbracket.

21 is a helical spring connected to the eye 11 of the upper spring 9 atone of its ends and to the extension 10 of the lower spring at its otherend byy means of an adjustable plate 2'2. This plate carries a series ofperforations which can *bev selectively engaged by a bolt or pin for thepurpose of adjust'- ing the tension of the spring 21.

Adverting noW to the Figures 4 and 5, the auxiliary spring hereindisclosed is installed upon the rear axle of the vehicle, one suchspring upon each side of the body as in the case of the front springs,and by reason of these two rear springs being identical in construction,a description of one of them will suffice for both. l

In these two views, 23 denotes the rear cross member of the frame and 24the `main spring Which is connected thereto. This andI .14 Withlthei1111. 1

Y 28 is a lower leaf corresponding to the lower leaf 6 of the frontspring and 29 'is the upper leaf likewise corresponding to the upperleaf 9. These two leaves are rigidly clamped at one end by the perchclamp 27 the other end of the leaf 28 terminates in an eye 30 which isconnected to a shackle 31, while the end of the other leaf 29 terminatesin a further eye 32 which in turn is Aconnected to a helical spring 33similar to the spring 21 aforementioned.

This spring is adjustably connected to the rea-r axle by a plate 34having perforations for selective engagement in or-der to ad" just thetension of its spring in similar manner as recounted in the descriptionof the front springs.

In the use of this invention; as the main springs 3 and 24 are delexedthe weight of the car body is thrown upon the lower leaves 6 and 28which function to absorb the force', while the upper leaves 9 and 29 Yoperate to absorb the rebound action of the main springs. Theseauxiliary springs, therefore, not only function as shock absorbers butalso act as snubbers and by their action tend to relieve stress upon themain springs of the vehicle, thus reducing` wear and tear and prolongingtheir life.

What I claim is:

1. In a -device of the cla-ss described, the combination with the frameand axle of the chassis, of a pair of contiguously arrangedleaf-springs, means for rigidly connecting one of their ends to saidaxle, means for connecting the other end of the lowermost leaf to theframe, and a coil spring for exerting downward pressure upon the freeend of the uppermost spring.

2. Ina device of the class described, the

combination with the frame and axle of the chassis, of an upper an-dlower leaf-spring contiguously arranged, means forrigidly connecting oneof their ends to said axle, a shackle connecting the other end of thelower leaf to the frame, and a coil spring for exerting downwardpressure upon the free end of the upper leaf.

8. In a device of the class described, the combination with the frameand axle of the chassis, of an upper and lower leaf-spring contiguouslyarranged, means for rigidly connecting one of their ends to said axle,such means comprising a bearing plate and U-clamps, a shackle connecting.the other end of the lower leaf to the frame, and a coil spring forexerting downward pressure upon the free end of the upper leaf.

4. In a device of the class described, the combination with the frameand axle of the chassis, of an upper and lower leaf-spring contiguouslyarranged, means for rigidly connecting one of their ends to said axle, ashackle connecting the other end of the lower leaf to the frame, a coilspring affixed to the free end of the upper leaf, and means' adjustablysecuring this coil spring to the aforesaid axle.

5. In a device of the class described, the combination with the frameand axle of the chassis, of an upper and lower leaf-spring contiguouslyarranged and substantially bent intermediate of their lengths, means forrigidly connecting one of their ends to said axle, such means comprisinga bearing plate and U-clamps; a. shackle connecting the other end of thelower leaf to the frame, a coil spring aiixed to the free end of theupper leaf, and a perforated strap adj ustably securing the coil springto the aforesaid axle.

Signed at Toronto, Ontario, Canada, this 17 th day of November 1924.

PAUL DAVID. CI-IA'MBERLAIN.

